body {
  background: linear-gradient(to right, #00c6ff, #0072ff);
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  width: 100%;
  max-width: 400px;
}

h1 {
  font-size: 24px;
  color: #333;
  margin-bottom: 20px;
}

.notice {
  background: #ffecb3;
  padding: 10px;
  border: 1px solid #ffeb3b;
  border-radius: 5px;
  margin-bottom: 20px;
  font-size: 14px;
}

.form-box {
  border: 1px solid #ddd;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}

select,
input[type="text"] {
  width: calc(100% - 20px);
  padding: 10px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  box-sizing: border-box;
}

.submit-button {
  background: #00c853;
  color: #fff;
  border: none;
  padding: 10px;
  border-radius: 5px;
  width: 100%;
  cursor: pointer;
  transition: background 0.3s;
}

.submit-button:hover {
  background: #00b04f;
}

.user-count {
  font-size: 14px;
  color: #333;
}

video {
  display: none;
}